HCI (More)

Good Human Computer Interfaces (HCIs) are designed so they have features suitable for the intended user.

(a) Graphical User Interfaces (GUIs) are suitable for the non-expert user.

Give two features of GUIs which make them suitable for the non-expert user. [2]

(b) Name a different suitable HCI for each of the following:

(i) A computer programmer; [1]

(ii) A person with special needs. [1]

Answer
(a)
Any two of
• Online help / help buttons / screen assistants
• Online tutorials
• Favourite settings
• Intuitive / easy to learn
• Interesting flashing symbols / colour (if justified)
• Do not have to learn commands
• WIMP (only 1 mark)

(b)

(i) DOS / command driven / DCL (direct command language) / CLI (command line interface)

(ii) Special devices

e.g. Braille keyboards
Voice input / speech recognition
Touch sensitive devices
Concept keyboard
Virtual reality